Home / 11,451.78-17,175.65-5,210.33

Finding the Fourth Proportional to 11,451.78, 17,175.65 and 5,210.33

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Solution

The fourth proportional to 11,451.78, 17,175.65 and 5,210.33 is: 7,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.78 : 17,175.65 = 5,210.33 : x
  2. Step 2: Convert to fraction form
    11,451.78/17,175.65 = 5,210.33/x
  3. Step 3: Cross multiply
    11,451.78x = 17,175.65 × 5,210.33
  4. Step 4: Simplify right side
    11,451.78x = 89,490,692.53
  5. Step 5: Solve for x
    x = 89,490,692.53/11,451.78
  6. Step 6: Final answer
    x = 7,814.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.